It is said that the king called himself a happy man as he watched the countless numbers of his troops crossing the bridge. But soon after Artabanus was amazed to see him burst into tears. ‘O king,’ he said, ‘thou doest strange things; even now thou didst call thyself happy and yet thou weepest.’ ‘Thought came upon me and sorrow for the shortness of the life of man,’ answered Xerxes, ‘because after a hundred years, of all this great host not one shall remain alive.’ When the army had crossed the bridge, it marched on toward the plain of Thessaly, while the fleet, sailing round the south-east point of the same country, anchored near the promontory of Magnesia. Here it was as near to the army as it was possible for it to be. Not long after the fleet had anchored, a sudden storm arose, and for three days did much damage to the ships. The Greeks meanwhile had been preparing to fight the invaders. They had sent spies to Sardis to find out, not only the numbers of the Persian host, but its mettle. As it chanced, the spies were captured and were on the point of being put to death, when Xerxes ordered them to be brought before him. When they stood in his presence, he demanded why they had ventured into the camp of the enemy. On hearing the reason he bade an officer show them the strength of his army and then send them back unharmed to their own country, ‘For,’ said the king, ‘if the spies had been killed, the Greeks could not have heard beforehand of all my great might, yet it would do them but little hurt to slay three men. But now will I have no trouble by marching against them, when the spies have already told of my mighty army.’ So confident was the king that he would conquer the enemy without difficulty, that when vessels filled with corn sailed past his fleet on the way to Athens, he would not allow any of his ships to pursue them. ‘Whither are they sailing?’ asked Xerxes when the corn ships were pointed out to him. ‘To thy enemies, O king, laden with corn,’ answered his anxious councillors. ‘Why, we are going thither also,’ said the king. ‘What harm do they do by taking corn for me?’ Now that the Persians were actually at hand the Spartans and Athenians summoned the Greek states to a council of war to be held at the Isthmus of Corinth. But some of the states were afraid, and instead of attending the council they sent earth and water to Xerxes. Thessaly, in the north, would be the first to suffer from the invading army. So a Greek force was sent to the Pass of Tempe, between Mount Olympus and Mount Ossa, to try to stop the advance of the Persians. But there were other ways by which the enemy could slip past the Greeks, so after a time they determined to withdraw from Thessaly. The northern people, being thus left defenceless, hastened to submit to Xerxes while there was still time. CHAPTER XLVI ‘THE BRAVEST MEN OF ALL HELLAS’